<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>径向渐变 - 重复渐变</title>
<style type="text/css">
div {
    width: 800px; height: 500px;
    background: -webkit-repeating-radial-gradient(red 0%, blue 10%, red 20% );
    background:    -moz-repeating-radial-gradient(red 0%, blue 10%, red 20% );
    background:      -o-repeating-radial-gradient(red 0%, blue 10%, red 20% );
    background:         repeating-radial-gradient(red 0%, blue 10%, red 20% );
}
</style>
</head>
<body>
<div></div>
</body>
</html>